1939
The Garden relinquishes its Tropical Station to the jurisdiction of the Panama Canal Zone.

Panama Canal Zone Orchid Station of the Missouri Botanical Garden, view of house and shelters.

Established as the Panama Extension Station of the Missouri Botanical Garden in 1926 the station greatly improved the availability of orchid cultivars for the Garden horticultural collections. Under the direction of George Pring the Garden actually delved into orchid sales during the 1930s.